Electrically operated refrigerating mechanism



Dec. 22, 1931. w. w. WILLIAMS ELECTRICALLY OPERATED REFRIGERATING MECHANISM Filed Jan. 2 1930 Patented Dec. 22, 19 31 UNITED: STATES PATENT OFFICE WALTER W. WILLIAMS, OF BLOOMINGTON,

ILLINOIS, .ASSIG-NOR T0 OIL-O- MATIC HEATING COB-PORATIQN, 0F BLOOMINGTON, ILLINOIS, A. CORIZORATION OI 'ILLTNOIS ELEO'IRIOALLY OPERATED REFBIGERATI'NG- Application filed J'anuary 2, 1980. Serialiio. 417,905.

ing mechanism in cabinets constructed for electrically operated refrigeration, exteriorly of thecabinet or even exteriorly of, the room in which the cabinet is located and from the desired location. the compressor and condenser unit may beconnected with the evaporator within the cabinet in any desired manner, such as, that shown and described in my prior copending application Serial No. 406,234, filed November 11, 1929.

It is a further object of this invention to provide a unit of the character described which compact, of simple construction and eflicient in performing its functions.

With these and other objects in view reference is made to the accompanying sheet of drawings which illustrate a preferred form of this ingrentiorl with the understanding that minofdtail'changes may be made without departing from the, scope thereof.

In. the-drawings: B I c Figure 1 isa view in side elevation of an embodiment of this invention.

Figure 2 is a bottom plan view of Figure 2, with the bottom plate removed. Figure 3 is a detail fragmentary view, partly inside elevation and partly in section takenon the line 3+3, Figure 2.

Since this invention relates only to the comstruction and arrangement of the compressor I 4 and condenser in a single unit that may be connected'with any type of'evaporator in an electrically operated device of this character employing a gaseous refrigerant, it is not deemed necessary to illustrate the other heat, reducing the temperature 'so that the: incoming air completes thev coolingdn- -the.

parts.

The compressor and electric motor for operating the compressor are enclosed within a dome l-hermetically sealed upon a closed casing 2 to which the gaseous refrigerant is returned from the evaporator, compressed by the compressor therein and the compressed gaseous refrlgerant delivered to a condenser 3. The casing 2 and dome 1 mount therein an electrically operated compressor in the manner shown and described in my said prior copending application Serial No. 406,234. The casing 2 is preferably circular in form and is mounted above and spaced apart from a similarly shaped base plate 4 by a perforated tubular support 5. The condenser 3 comprises a coil of pipe having a plurality of turns concentric with the vertical center line of the casing 2 and support 5 which are arranged in spaced relation adjacent to the said support 5 with the uppermost coil connected to the discharge side of the compressor and the lowermost coil connected to a liquid receptacle 6, preferably arranged thereunder in .the form of an arcuate tube, as shown in Figure 2, with a connection for a pipe leading to the high side of an evaporator.

Within the perforated tubular support 5 and coils of the condenser a circulatm fan 7 is mounted on an electrically operate motor shaft preferably aligned with the vertical center line of the su port 5 and casing 2, the motor 8 for the fan being supported as shown and may be connected in series with the compressor motor circuit, if desired, so

above the. baflle 9, as indicated by the arrows, to coolthe contents theregfgg; Thematgoing airpassing through thef u'pper coils, the uppermost of which is connectedthe compressor, acts upon the coils of greatest lower coils without appreciably increasing the temperature of the air passing therethrough. v

The mobility of the unit is the same as that referred to in my said prior copending application and this construction and arrangement has the further advantage of possessing a positive mechanical means for circulating the atmospheric air about the condenser in a most eflicient manner.

WVhat I claim is:

1. In an electrically operated refrigeration device, a unit compressor and condenser including a compressor casing, and a condenser mounted thereunder comprising a plurality of coils having the uppermost coil connected to the discharge side ofthe compressor, and means surrounded by the condenser for withdrawing atmospheric air through the lower coils thereof and expelling such air through the upper coils.

2. In an electrically operated refrigeration device, a unit compressor andcondenser including a compressor casing and a condenser mounted thereunder comprising a plurality of coils having the uppermost coil connected to the discharge side of the come pressor and a circulating fan mounted below the compressor casing adapted to circulaiile atmospheric air about. the condenser 00 S.

3. In an electrically operated refrigeration device, a condenser including a plurality of helical coils, a erforated tubular support surrounding said coils, a compressor mounted upon said support above said coils, the upper end of the helical coil connected to the dischar e side of the compressor, an arcuate v tubuIar liquid receptacle arranged within said support below -the said .coils,

'the lower end of the helical coil connected to said rece tacle, a circulating fan mounted within said sup ort and helical condenser coil adapted to raw air within the supiport through the lower perforations and con ens er coils anddischar e said air through the l-upper condenser coi s and perforations.

4. In an electrically operated refrigeration device, a condenser including a plurality means for operating the circulating fan in unison with the compressor.

5. In an electrically operated refrigeration device, a unit compressor and condenser including a compressor casing, and a condenser mounted thereunder comprising a plurality of coils connected to the discharge side of the compressor, and means surrounded by the condenser for withdrawing atmospheric aired within said support and helical condenser coil adapted to draw air within the support through the lower erforations and condenser coils and disc ar e said air through the upper condenser coi s and perforations WALTER W. WILLIAMS.

of helical coils, a perforated tubular support surroundin said coils, a compressor mounted upon said support above said coils, the

u per end of the helical coil connected to the dischargesideof the compressor, a baflie extending intermediate the coils of the condenser, an arcuate tubular liquid receptacle arranged within said support below the said coils, the lower end of the helical coil connected to said receptacle, a circulating fan mounted within said support and helical condenser coil adapted to draw air within the support through the lower perforations and condenser coils below said battle and discharge said air through the upper-condenser coils and perforations above said baflle, and 

